JBM Group Graduate Engineer Trainee (Get) Interview Questions, Process, and Tips

Q1. What is stress and strain?
Ans. 
Stress is the force applied to a material, while strain is the resulting deformation or change in shape.
• Stress is the external force acting on an object, measured in units like Newtons per square meter (N/m^2) or Pascals (Pa).

• Strain is the measure of deformation or change in shape of a material due to stress, expressed as a ratio or percentage.

• Example: When you stretch a rubber band (apply stress), it elongates (strain
Answered by AI
Add your answer

Basic quantitative aptitude, English, and reasoning skills are essential; quick solving abilities are necessary due to the limited time available, making both speed and accuracy important factors.

Q1. What's your favourite subject in engineering?
Add your answer
Q2. What is heat treatment processes? Explain in brief.
Ans. 
Heat treatment processes involve heating and cooling metals to alter their properties.
• Heat treatment processes involve heating metals to specific temperatures and then cooling them at controlled rates.

• Common heat treatment processes include annealing, tempering, quenching, and normalizing.

• These processes can change the hardness, strength, toughness, and other properties of metals.

• For example, quenching involves rapid c...read more
Answered by AI
Add your answer
Q3. Tell me about surface tension ?
Ans. 
Surface tension is the property of a liquid that allows it to resist an external force due to the cohesive nature of its molecules.
• Surface tension is caused by the attraction between the molecules of a liquid, which creates a 'skin' on the surface of the liquid.

• It is responsible for phenomena like capillary action, where liquids rise in narrow tubes against the force of gravity.

• Surface tension can be observed in everyd...read more
Answered by AI
Add your answer
Q4. Difference between mass and weight?
Ans. 
Mass is the amount of matter in an object, while weight is the force of gravity acting on an object.
• Mass is a scalar quantity and is measured in kilograms or grams.

• Weight is a vector quantity and is measured in newtons.

• Mass remains constant regardless of location, while weight changes depending on the gravitational pull.

• For example, a person with a mass of 70 kg will have a weight of approximately 686 newtons on Earth,
Answered by AI
Add your answer
Q5. Modes of heat transfer ?
Ans. 
Modes of heat transfer include conduction, convection, and radiation.
• Conduction: Heat transfer through direct contact between particles. Example: Touching a hot stove.

• Convection: Heat transfer through the movement of fluids (liquids or gases). Example: Boiling water.

• Radiation: Heat transfer through electromagnetic waves. Example: Feeling the warmth of the sun.
Answered by AI
Add your answer

Q1. Tell me something about yourself ?
Add your answer
Q2. What were your roles and responsibilities as a member of the PD Club in your institute?
Add your answer
Q3. What motivates you to join our organization?
Add your answer
Q4. What is your understanding of our organization?
Add your answer

In the aptitude round only 30 minutes provided by company to solve 80 questions.
Maths - 30 questions
Reasoning - 30 question
English -20 questions
There is no negative marking.

Q1. I have done b.tech mechanical engineering so interviewer asked technical questions related to - Welding, iron carbon diagram,mohar circle, stress - strain curvee, ic engine process , Carnot cycle , swept v...read more
Add your answer

Q1. Project related questions in deeply.
Add your answer

Q1. General questions like strength, relocate, shifts timings, accommodations.....
Add your answer

Q1. Self your introduction
Add your answer
Q2. Electrical vehicles, what is chassis
Add your answer
Q3. What is automobile, what is otto ,dual,diesels cycle difference
Ans. 
The question is about the basics of automobile engines and the differences between Otto, Dual, and Diesel cycles.
• Automobile is a vehicle powered by an engine that converts fuel into mechanical energy.

• Otto cycle is a four-stroke combustion cycle used in gasoline engines.

• Dual cycle is a modified version of the Otto cycle that includes a constant volume heat addition process.

• Diesel cycle is a four-stroke combustion cycle ...read more
Answered by AI
Add your answer
Q4. What is coefficient of performance input/output
Ans. 
Coefficient of performance (COP) is the ratio of output heat to input work or energy.
• COP is used to measure the efficiency of a heat pump or refrigeration system.

• It is calculated by dividing the output heat by the input work or energy.

• A higher COP indicates a more efficient system.

• For example, a heat pump with a COP of 3 can produce three units of heat for every unit of energy input.

• COP can also be expressed in terms o...read more
Answered by AI
Add your answer
Q5. How the otto cycle constants volume this process,
Ans. 
The Otto cycle is a constant volume process used in internal combustion engines.
• The Otto cycle consists of four processes: intake, compression, combustion, and exhaust.

• During the intake process, the fuel-air mixture is drawn into the cylinder.

• During the compression process, the mixture is compressed to a smaller volume, increasing its temperature and pressure.

• During the combustion process, the mixture is ignited, causi...read more
Answered by AI
Add your answer
Q6. What is the Duel cycle principles -both constant volume, and pressure
Ans. 
Dual cycle principles involve both constant volume and pressure processes in an engine cycle.
• Dual cycle is a combination of Otto and Diesel cycles.

• It involves two constant volume and one constant pressure processes.

• The first constant volume process is isentropic compression.

• The constant pressure process is combustion.

• The second constant volume process is isentropic expansion.

• It is used in gas turbine engines and some i
Answered by AI
Add your answer
Q7. Physical quantities length ,mass time
Add your answer
Q8. Efficiency of carnot T1/T2-T1
Ans. 
Efficiency of Carnot cycle is given by T1/T2-T1
• Efficiency of Carnot cycle is the maximum possible efficiency of a heat engine

• It depends only on the temperatures of the hot and cold reservoirs

• Efficiency = 1 - (T1/T2)

• T1 is the temperature of the cold reservoir and T2 is the temperature of the hot reservoir
Answered by AI
Add your answer

Test based on apptitude including your math skills.

Q1. Technical round based on your technical background.
Add your answer
Q2. What is POWER system optimization?
Ans. 
POWER system optimization is the process of improving the efficiency and reliability of power systems.
• It involves analyzing and modeling power systems to identify areas for improvement.

• Optimization techniques such as load balancing and voltage regulation are used to improve efficiency.

• Reliability can be improved through measures such as redundancy and fault detection.

• Examples of optimization tools include power flow an...read more
Answered by AI
Add your answer